Diethyl (4,4-diethoxy-1-phenylbutan-2-yl)phosphonate CAS 203193-00-4

Purity 97%+In StockPharmaceutical Standards
CAS No.203193-00-4
Molecular FormulaC18H31O5P
Molecular Weight358.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl (4,4-diethoxy-1-phenylbutan-2-yl)phosphonate CAS 203193-00-4 chemical structure

Description

Based on its molecular formula C18H31O5P, Diethyl (4,4-diethoxy-1-phenylbutan-2-yl)phosphonate contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Diethyl (4,4-diethoxy-1-phenylbutan-2-yl)phosphonate (CAS 203193-00-4) is a high-purity analytical reference standard with the molecular formula C18H31O5P and a molecular weight of 358.41 g/mol.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC18H31O5P
Molecular Weight358.41 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2015

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